If a Wynn summoner tells their summons to attack each other, the summoner flags. It's possible we would go red if the summon died. With the new rep system, I don't think I'll be trying it though. :P
Really? Thank god i haven't PKed a summon than... O.o how much negative karma do you get than?
It used to be 60, but that was pre-GoD. Not sure now. I would guess in this case (the self-killed summon), I wouldn't go red, because the summon is also flagged. Still, surprised the hell out of me when it happened!
Oh wise and mystical being, whose knowledge transcends patch notes, please give unto us the gift of your wisdom. Summoners have always been able to kill their summons without flagging. Now that we have more than one summon, this seems an oversight rather than an intended change. But I guess you, as an NCSoft Korean developer, know better?